The relationship between ethics and performance has previously been addressed in the literature, although there are still some gaps, for example, the relationship of ethical ideologies to student performance. This work aims to contribute to the literature with a statistical evaluation using partial least squares path modelling (PLS-PM) regarding whether university students' ethical ideologies and moral meaningfulness influence their level of student performance and academic achievement. Results indicate that the ideologies of justice and deontology increase moral meaningfulness, moral meaningfulness in turn increase student's citizenship behaviours and student's in-role performance, and finally, student's in-role performance positively influences academic achievement. This research provides resources applicable to the fields of pedagogy and ethics to encourage performance during the study and highlight the value of the ideologies of justice and deontology.